1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt %s -instcombine -S | FileCheck %s
4 define i32 @PR38915(i32 %x, i32 %y, i32 %z) {
5 ; CHECK-LABEL: @PR38915(
6 ; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[X:%.*]], -1
7 ; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[Y:%.*]], -1
8 ; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP2]], [[TMP1]]
9 ; CHECK-NEXT: [[M1N:%.*]] = select i1 [[TMP3]], i32 [[TMP1]], i32 [[TMP2]]
10 ; CHECK-NEXT: [[C2:%.*]] = icmp sgt i32 [[M1N]], [[Z:%.*]]
11 ; CHECK-NEXT: [[M2:%.*]] = select i1 [[C2]], i32 [[M1N]], i32 [[Z]]
12 ; CHECK-NEXT: [[M2N:%.*]] = xor i32 [[M2]], -1
13 ; CHECK-NEXT: ret i32 [[M2N]]
17 %c1 = icmp sgt i32 %xn, %yn
18 %m1 = select i1 %c1, i32 %xn, i32 %yn
19 %m1n = xor i32 %m1, -1
20 %c2 = icmp sgt i32 %m1n, %z
21 %m2 = select i1 %c2, i32 %m1n, i32 %z
22 %m2n = xor i32 %m2, -1